Narrative:
The undercarriage wouldn't lock up after takeoff, so the crew recycled the gear a couple of times. On the third attempt, the bogie (which was not rotating in the right sequence) fouled the main hydraulic jack fracturing the attachment bolt of the shuttle valve for the main and emergency 'down' hydraulic lines. All hydraulic fluid escaped and the gear couldn't be extended anymore. An emergency landing was carried out on a foamed runway at Manston.
PROBABLE CAUSE: "The undercarriage failed to lock down due to loss of the hydraulic fluid from the main and emergency systems. This resulted from fracture of the hydraulic lines consequent upon fouling of the port undercarriage retraction jack head by the bogie through incorrect setting up of the retraction sequence valve."
Forced landing on runway
» ICAO Circular 88-AN/74 Volume II (156-166)
| Status: | Accident investigation report completed and information captured |
| Date: | Thursday 20 April 1967 |
| Time: | 15:18 UTC |
| Type: | Bristol 175 Britannia 308F |
| Operator: | British Eagle International Airlines |
| Registration: | G-ANCG |
| MSN: | 12923 |
| First flight: | 1959-11-20 (7 years 5 months) |
| Total airframe hrs: | 10682 |
| Engines: | 4 Bristol Proteus 75 |
| Crew: | Fatalities: 0 / Occupants: 11 |
| Passengers: | Fatalities: 0 / Occupants: 54 |
| Total: | Fatalities: 0 / Occupants: 65 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | Manston-Kent International Airport (MSE) ( United Kingdom)
|
| Phase: | Landing (LDG) |
| Nature: | Int'l Non Scheduled Passenger |
| Departure airport: | London-Heathrow Airport (LHR/EGLL), United Kingdom |
| Kuwait International Airport (KWI/OKBK), Kuwait |
The undercarriage wouldn't lock up after takeoff, so the crew recycled the gear a couple of times. On the third attempt, the bogie (which was not rotating in the right sequence) fouled the main hydraulic jack fracturing the attachment bolt of the shuttle valve for the main and emergency 'down' hydraulic lines. All hydraulic fluid escaped and the gear couldn't be extended anymore. An emergency landing was carried out on a foamed runway at Manston.
Probable Cause:
PROBABLE CAUSE: "The undercarriage failed to lock down due to loss of the hydraulic fluid from the main and emergency systems. This resulted from fracture of the hydraulic lines consequent upon fouling of the port undercarriage retraction jack head by the bogie through incorrect setting up of the retraction sequence valve."
Accident investigation:
 |
|
Classification:
Hydraulic system problemForced landing on runway
Sources:
» Flight International 04 July 1968 (p.9)» ICAO Circular 88-AN/74 Volume II (156-166)
Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from London-Heathrow Airport to Kuwait International Airport as the crow flies is 4641 km (2900 miles).
Distance from London-Heathrow Airport to Kuwait International Airport as the crow flies is 4641 km (2900 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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